Apply modular machine tool to machine the analysis of part of project machine product

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  • source:EDON CNC Machining
In last few years, because the country increases the investment of infrastructure, project machine demand appeared powerful growth momentum, the part produces manufacturer to present the development condition that gives one year to break up one time, although because the country appears local economy overheat and adopt pair of rolled steel, building materials, electroanalysis the industry such as aluminium has adjusting control, but a lot of major project in succession start working mount a horse, although project machine won't appear to crossed hot phenomenon last year, but the growth situation that still will keep older rate a few years henceforth. Domestic project machine is compared with entrance product photograph, its characteristic is price process instrumentation of stability of low, product, dependability difference, spare parts is backward. As the progressively implementation with affirmatory to world trade country, the competitive advantage of the price also drop off, it is with fork-lift truck exemple: Most lead plane manufacturer and manufacturer of component form a complete set are at present right gear-box casing, change quadrature implement the frame before housing, hind the crucial part such as frame, luffing jib, drive axle, use current equipment treatment mostly, this kind of defect that machines means has: Productivity expands hard, product quality is not stable, in goods keep long in stock serious, economic benefits is not quite remarkable. Those who be worth to rejoice is country's bigger fork-lift truck manufacturer the home already realized this one problem stage by stage. In respect of plane component part, mansion labour, face labour, appropriate labour, dragon labour to use modular machine tool to be opposite in succession luffing jib, before frame, hind frame, the aperture department that around join with a hinge wears undertakes machining, the spare parts holds clip, bull is machined at the same time, with sheet of general purpose machine tool aperture one by one is machined, efficiency raised 3-6 times, and the error of 2 fixed position that avoided workpiece tune and arises. Applying modular machine tool to machine structural member and photograph of general purpose machine tool to compare each aperture is coordinate precision can raise ± by ± 1mm 0.

2mm, coaxial is spent have Φ 0.

5mm raises ± 0.

08mm, kong Jiping is spent all right by Φ 0.

7mm raises ± 0.

1mm, and the assembly that all precision all rely on machine tool itself precision assures, laid a foundation to improve truckload quality. Gear-box casing is component of the core in system of fork-lift truck campaign, the structural stiffness of spare parts itself is poorer, and treatment precision asks relatively taller, do not adopt special measure, make combine face plane with transmission 0.

The verticality that the flatness of 08mm and each aperture are opposite this, quadrature of each aperture center all assures hard. My company began to enter project machinery industry 2002, proper motion design made product line of casing of labour of the first mansion gear-box, this line uses modular machine tool and the flow operation that a few current equipment photographs combine, production program is produce per year 10000, this line is the biggest the characteristic is: Technology of oscillatory effectiveness for a given period of time is used before semifinished product takes a line, eliminate partial internal stress, make internal stress generation is out of shape the rule is changed at the same time, to assure old plane 0.

The flatness of 08mm provided safeguard, the others bores hole all with Φ 90mm, aperture of 10mm of a Φ and old plane locate, the aperture of a flight of stairs inside large hole uses wide choice twice to machine, treatment gives same arbor when boring of essence of life Φ 420, Φ 358, Φ 355, Φ 342, Φ 170mm reachs underside of reverse gear oil cylinder, made sure the coaxial of each aperture is spent. 5 aperture of the others use thick precision work likewise, what the aperture when finish machining fastens coordinate dimension to rely on clamping apparatus is oriented set assure. The advantage of this product line is flow operation, decrease greatly in product measure, efficiency of stimulative capital movement; Main precision relies on a machine tool to assure, reduced the quality demand to jockey, product quality is stable and reliable at the same time; Proper investment can enlarge scale of production quickly, solve general purpose machine tool to machine efficiency low, same process needs the difficult problem that much stage machine tool machines. Mansion is versed in group former casing divides a factory to use a large number of current device, full load is produced, produce per year a quantity to have 7000 only, and lead plane produced quantity criterion to be 12000 last year, outside appoint the component is amounted to 40% , restrict the development of the enterprise badly. My company double change the building of two product line in order to offer money seasonable, of the order that the product pledges quantity stability drew much home company and factory of large scale main computer look around. Mansion labour, face labour, Liu Gong to send expert group to make an on-the-spot investigation respectively, combine oneself advantage at the same time, in respect of gear-box casing treatment the ability that start revises a project. My company is versed in for mansion, face the water product line that is versed in two companies design is made, be try to improve on the foundation of this product line finish, many use modular machine tool undertakes planar, big Kong Jia is versed in, the high investment that manage machining center in order to overcome and brings and cutting power are insufficient, what machine tool tigidity differs is contradictory, and 5 alveolus and two precision work that fixed position sells aperture use machining center to finish, cannot finish with compensatory modular machine tool auger, the ability that complex process machines bore with a reamer, boring. Can conclude from inside above shallow analyse, develop quickly in project machine today, the dimensions on the product that we are faced with, the difficult problem of the step on quality, can apply treatment of modular machine tool to get effective settlement, modular machine tool is having larger development space in project machine domain. CNC Milling CNC Machining